plot_2D_potential missing

[pojeda]

Hi,

I am running your tutorials, thanks for releasing your instructive code on Github. In the
Mueller-Brown-Potential notebook the plot_2D_potetial method seems to be missing.
Is there any address where it can be located?

Thanks.

[tlfobe]

It's been a while since we've made changes to this code, but I worked on getting the MB potential example working, so things might work better if you check out the tfobe_working branch. We tried merging branches at one point but it would involve some restructuring of particular objects which we never really resolved.